Screen rotation locking mechanism
By introducing an independent clamping system into the screen rotation locking mechanism, the problems of large driving force, high cost and short life in the prior art are solved, and the effects of cost reduction and service life extension are achieved.
Patent Information
- Application Number
- CN202311045521.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-18
- Publication Date
- 2025-02-21
AI Technical Summary
The existing screen rotation locking mechanism has problems such as large motor driving force, high cost, complex mechanism parts, short life and lack of gap elimination capabilities.
A separate clamping system is adopted, the rotating mechanism is clamped and unlocked through the clamping mechanism, and the gap between moving parts is eliminated within the system to reduce costs and extend service life.
It effectively reduces the cost of the screen rotation locking mechanism, extends the service life, and improves the stability and reliability of the system.
Smart Images
Figure CN119489754A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of automobile interior decoration parts, and in particular to a screen rotation locking mechanism. Background Art
[0002] In order to streamline components and provide a sense of technology, the center console of the new generation of vehicles (especially new energy vehicles) is greatly reducing (or even eliminating) physical buttons, and instead integrating control functions on the touch screen. For example, in the Tesla Model 3, all vehicle status displays and settings are integrated on a single large-size touch screen in the center. First, it is to facilitate operation and avoid strong light (such as sunlight reflecting off the driver or passengers, causing interference, the screen needs to be adjusted, such as rotating and moving the screen); second, the screen needs to be firmly fixed while rotating and moving, so that passengers can read information and operate accurately to avoid dizziness and abnormal noise.
[0003] In order to achieve a firm fixation, most of the central control screens on the market are designed to be fixed. There are also movable screens (such as BYD Han, etc.) that rotate 90° around the normal of the center of the screen and can change from vertical to horizontal. It only changes the aspect ratio of the screen. The goal is to improve entertainment, but there is no obvious improvement in comfort and ease of operation. If the driving route is a straight line, strong light (sunset) is reflected from a lower angle to the human eye. At this time, it will be impossible to look directly at the screen to obtain necessary driving information or control the vehicle, which is not only uncomfortable but also dangerous. There are also some rotating screens in the central control (such as the rotating screen of Changan Deep Blue Central Control) with complex parts and mechanisms, which are not conducive to production and assembly and have high product costs.
[0004] In order to securely fix the screen, the gap between the moving parts of the central control's rotating screen needs to be compressed to the extreme, and at the same time, a larger pressure is applied within a smaller lever arm or force area. This type of central control's rotating screen has the following shortcomings: 1. The motor driving force is large, the motor size is large, the weight is large, and the cost is high; 2. The mechanism components are sturdy, and the processing precision is high, and the cost is high; 3. Due to precise matching or high load under small size, the life performance is poor; 4. If wear occurs during use, there is no gap compensation capability or the capability is poor. Summary of the invention
[0005] The technical problem to be solved by the present invention is that the existing screen rotation locking mechanism has the following problems: the motor driving force is large, the motor size is large, the weight is large, and the cost is high; the mechanism components are thick, and the processing precision is high, but the cost is high; the life performance is poor due to the limitation of precise matching or high load under small size; there is no ability to continuously eliminate gaps or the ability is poor, etc., and a screen rotation locking mechanism is provided that eliminates the gap between moving parts in the system by being equipped with an independent clamping system, so as to reduce costs and extend service life.
[0006] In order to achieve the above-mentioned object of the invention, the screen rotation locking mechanism of the present invention comprises:
[0007] Screen;
[0008] A rotating mechanism for rotating the screen left and right, wherein the screen is mounted on the rotating mechanism, characterized in that it also includes:
[0009] A clamping mechanism clamps the rotating mechanism. When the screen is stationary, the clamping mechanism clamps and locks the rotating mechanism; when the screen rotates, the clamping mechanism unlocks the rotating mechanism and produces a damping effect.
[0010] In a preferred embodiment of the present invention, it also includes:
[0011] A motion mechanism that enables the screen to perform reciprocating motion; the rotating mechanism and the clamping mechanism are installed on the motion mechanism, and when the clamping mechanism is in a locked state, the clamping mechanism clamps and locks the motion mechanism; when the clamping mechanism is in an unlocked state, the clamping mechanism unlocks the motion mechanism and produces a damping effect.
[0012] In a preferred embodiment of the present invention, the motion mechanism comprises:
[0013] A base fixed on the center console;
[0014] at least one track mounted on the base;
[0015] A guide plate is installed on the track and can reciprocate along the track, the rotating mechanism and the clamping mechanism are installed on the guide plate, and the clamping mechanism acts on the track to clamp and lock the guide plate and generate damping.
[0016] In a preferred embodiment of the present invention, a limit head is fixed to one end of the track away from the base, and the limit head cooperates with the base to limit the guide plate to an extreme position of reciprocating motion on the track.
[0017] In a preferred embodiment of the present invention, a rack is provided on the track, and at least one first gear is installed in the guide plate, the first gear is meshed with the rack, and the guide plate is driven to reciprocate along the track by the rotation of the first gear.
[0018] In a preferred embodiment of the present invention, a first arc-shaped rack is provided on the outer circle of the rotating disk, and the gear is meshed with the first arc-shaped rack.
[0019] In a preferred embodiment of the present invention, the rotating mechanism comprises:
[0020] a cover mounted on the guide plate, wherein the screen is hinged at one end of the cover adjacent to the screen;
[0021] A rotating disk is arranged between the cover and the guide plate, and the screen is fixed on the rotating disk. When the screen rotates, the rotating disk is driven to rotate. The clamping mechanism acts on the rotating disk to clamp, lock and generate damping for the rotating disk.
[0022] In a preferred embodiment of the present invention, the screen is hinged on one end of the cover adjacent to the screen by means of a rotating shaft bolt and a pair of bearings.
[0023] In a preferred embodiment of the present invention, the rotating mechanism comprises:
[0024] a lower base, the lower base being mounted on the guide plate,
[0025] an upper base mounted on the lower base;
[0026] a rotating disk disposed between the upper base and the lower base, the screen being mounted on the rotating disk; when the screen rotates, the rotating disk is driven to rotate; a track groove is disposed on the rotating disk; the clamping mechanism is mounted in the lower base to clamp, lock and damp the rotating disk;
[0027] At least one shaft passes through the track groove and has upper and lower ends respectively fixed on the upper base and the lower base.
[0028] In a preferred embodiment of the present invention, the rotating mechanism comprises:
[0029] an upper base mounted on the guide plate;
[0030] a rotating disk disposed between the upper base and the lower base, the screen being mounted on the rotating disk; when the screen rotates, the rotating disk is driven to rotate; a track groove is disposed on the rotating disk; the clamping mechanism is mounted in the lower base to clamp, lock and damp the rotating disk;
[0031] At least one shaft passes through the track groove and the upper and lower ends are respectively fixed on the upper base and the guide plate.
[0032] In a preferred embodiment of the present invention, the track groove is composed of a semicircular track groove and two straight track grooves, and the two straight track grooves are respectively located at two ends of the semicircular track groove and are located on the same straight line.
[0033] In a preferred embodiment of the present invention, the clamping mechanism comprises:
[0034] A pair of brake discs, each brake disc having a first brake surface in frictional contact with the rotating disc, the first brake surface being in frictional contact with the rotating disc at all times; each brake disc also having a first inclined wedge surface opposite to the first brake surface, a second inclined wedge surface cooperating with the first inclined wedge surface being arranged in the guide plate, each brake disc being able to generate a movement tendency along the second inclined wedge surface to adjust the friction force between the first brake surface and the rotating disc; at the same time, the first inclined wedge surface is also in frictional contact with the track to clamp and lock the track and generate damping;
[0035] a cam for driving the pair of brake discs to move, the cam being in contact with opposite ends of the pair of brake discs;
[0036] A cam coil spring drives the cam to rotate; one end of the cam coil spring is connected to the cam, and the other end of the cam coil spring acts on the guide plate, and the cam coil spring generates a movement tendency for the cam.
[0037] In a preferred embodiment of the present invention, it also includes:
[0038] A cam coil spring driving wheel is installed in the guide plate, the cam coil spring is wound around the cam coil spring driving wheel and the other end of the cam coil spring is connected to the cam coil spring driving wheel.
[0039] In a preferred embodiment of the present invention, it also includes:
[0040] A second arc-shaped rack is arranged in the middle of the inner circle of the rotating disk;
[0041] A second gear having an axis disposed in the guide plate, the second gear meshing with the second arc-shaped rack;
[0042] A driving mechanism drives the second gear to rotate, and the second gear drives the rotating disk to rotate by meshing with the second arc-shaped rack, and then drives the screen to rotate through the rotating disk.
[0043] Due to the adoption of the following technical solutions, the present invention eliminates the gap between moving parts in the system by equipping an independent clamping system, thereby reducing costs and extending service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0044] Figure 1 This is a schematic diagram of Example 1 viewed from one direction.
[0045] Figure 2 This is a schematic diagram of Example 1 viewed from another direction.
[0046] Figure 3 This is a schematic diagram of the decomposition of Example 1.
[0047] Figure 4 This is an enlarged schematic diagram of Example 1 viewed from another direction.
[0048] Figure 5 This is a bottom view of Example 1.
[0049] Figure 6 This is a schematic diagram of the internal structure of Example 1.
[0050] Figure 7 This is a schematic diagram of Example 1 in an initial state.
[0051] Figure 8 This is a schematic diagram of the screen rotating to the left in Example 1.
[0052] Fig. 9 This is a schematic diagram of Example 1 in which the screen is rotated to the left and locked by the clamping mechanism.
[0053] Fig.10 This is a schematic diagram of the screen rotating to the right in Example 1.
[0054] Fig.11 This is a schematic diagram of Example 1 in which the screen is rotated rightward and locked by the clamping mechanism.
[0055] Fig.12 This is one of the decomposition diagrams of Example 2.
[0056] Fig.13 This is a schematic diagram of the external structure of Example 2.
[0057] Fig.14 Schematic diagram of the internal structure of Example 2.
[0058] Fig.15 This is a schematic diagram of Example 2 in an initial state.
[0059] Fig.16 This is a schematic diagram of Example 2 in the state of moving forward and backward and rotating the screen.
[0060] Fig.17 This is a schematic diagram of Example 2 in which the screen is moving forward and backward and is locked by the clamping mechanism after being rotated.
[0061] Fig.18 This is a schematic diagram of the external structure of Example 3.
[0062] Fig.19 This is a schematic diagram of the decomposition of Example 3.
[0063] Fig. 20 This is a schematic diagram of the external structure of Example 3 (without the upper base).
[0064] Fig.21 This is a schematic diagram of the internal structure of Example 3.
[0065] Fig. 22 This is a schematic diagram of Example 3 in an initial state.
[0066] Fig.23 This is a schematic diagram of screen rotation in Example 3.
[0067] Fig.24 This is a schematic diagram of screen movement in Example 3.
[0068] Fig.25 This is a schematic diagram of the screen of Example 3 being locked by the clamping mechanism after adjustment.
[0069] Fig.26 This is a schematic diagram of the structure of Example 4.
[0070] Fig. 27 This is a schematic diagram of the decomposition of Example 5. DETAILED DESCRIPTION
[0071] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0072] Example 1
[0073] See also Figures 1 to 6 The screen rotation locking mechanism shown in the figure includes: a screen 100, a rotation mechanism that allows the screen 100 to rotate left and right, and a clamping mechanism.
[0074] The rotating mechanism includes a cover 210, a rotating disk 220 and a guide plate 230. The cover 210 and the guide plate 230 are installed together, and the rotating disk 220 is arranged between the cover 210 and the guide plate 230 and can rotate.
[0075] The middle position of the screen 100 is hinged at the end of the cover 210 adjacent to the screen 100 through a rotating shaft bolt 110 and two bearings 120, 130. When the screen 100 rotates, the rotating disk 220 and the rotating shaft bolt 110 are driven to rotate.
[0076] The two sides of the screen 100 are fixed to the rotating disk 220 by bolts 140 and 150, so that when the screen 100 rotates, the rotating disk 220 can be driven to rotate. The fixing points of the two sides of the screen 100 and the rotating disk 220 are not in the same straight line as the middle position of the screen 100 and the hinge point of the end of the cover 210 close to the screen 100, so that the screen 100 can be supported at three points, which is more stable.
[0077] The clamping mechanism includes a pair of brake discs 310, 320, a cam 330, a cam spring 340 and a cam coil spring driving wheel 350. Each brake disc 310, 320 has a first brake surface 311, 321 in frictional contact with the rotating disc 220, and each brake disc 310, 320 also has a first inclined wedge surface 312, 322 opposite to the first brake surface 311, 321. The pair of brake discs 310, 320 are installed in the guide plate 230, and a pair of second inclined wedge surfaces 231, 232 cooperating with the first inclined wedge surfaces 312, 322 are arranged in the guide plate 230. The first inclined wedge surfaces 312, 322 are respectively cooperating with the second inclined wedge surfaces 231, 232. The first brake surfaces 311, 321 of the pair of brake discs 310, 320 apply a pressure to the rotating disc 220 to change the friction between the first brake surfaces 311, 321 and the rotating disc 220. When the friction force between the first brake surfaces 311, 321 and the rotating disk 220 increases to a set value, the pair of brake disks 310, 320 can lock the rotating disk 220, so that the screen 100 is stable and easy to operate. When the friction force between the first brake surfaces 311, 321 and the rotating disk 220 is lower than the set value, the rotating disk 220 can rotate with the screen 100. At this time, there is still a certain friction damping between the first brake surfaces 311, 321 and the rotating disk 220, so that the first brake surfaces 311, 321 can apply a certain friction damping to the rotating disk 220.
[0078] The pressure exerted by the pair of brake discs 310, 320 on the rotating disc 220 is achieved by the rotation trend of the cam 330. Regardless of whether the rotating disc 220 is in the unlocked state or the locked state, the pair of brake discs 310, 320 and the rotating disc 220 are in contact, but the degree of contact is different.
[0079] The pressure applied by the pair of brake discs 310 and 320 to the rotating disc 220 is realized by the yellow rotation tendency of the cam 330, and the cam 330 contacts the opposite ends of the pair of brake discs 310 and 320. The rotation tendency of the cam 330 is realized by the cam spring 340.
[0080] See also Figures 7 to 11 When the screen 100 is in the initial state, the cam spring 340 increases the rotation tendency of the cam 330, and the cam 330 applies a thrust to the pair of brake discs 310, 320. The first inclined wedge surfaces 312, 322 on the pair of brake discs 310, 320 cooperate with the second inclined wedge surfaces 231, 232 on the guide plate 230 to apply a pressure to the rotating disk 220, and make the pressure greater than the set value. At this time, the rotating disk 220 will be locked by the pair of brake discs 310, 320 and cannot rotate.
[0081] When the screen 100 is rotated, the rotating disk 220 rotates with the screen 100. At this time, the cam spring 340 is compressed, the rotation tendency of the cam 330 decreases, and the thrust applied by the cam 330 to the pair of brake discs 310 and 320 will decrease. Through the cooperation of the first inclined wedge surfaces 312 and 322 on the pair of brake discs 310 and 320 and the second inclined wedge surfaces 231 and 232 on the guide plate 230, the pressure applied to the rotating disk 220 will also decrease. When the pressure is less than the set value, the rotating disk 220 can rotate again. However, since there is still a certain friction between the first brake surfaces 311 and 321 of the pair of brake discs 310 and 320 and the rotating disk 220, the rotating disk 220 can rotate under the action of damping. The rotation tendency of the cam 330 is realized by the cam spring 340. When the rotating disk 220 is locked, the rotation tendency of the cam 330 is large, and when the rotating disk 220 is unlocked, the rotation tendency of the cam 330 is small.
[0082] The cam spring 340 and the cam coil spring driving wheel 350 are also installed in the guide plate 230. The cam coil spring driving wheel 350 is used to wind up and release the cam spring 340. The outer end of the cam spring 340 is connected to the cam 330, and the inner end is connected to the cam coil spring driving wheel 350.
[0083] The helix angle of the cam 330 is used to amplify the torque of the cam spring 340 into a larger thrust of a pair of brake discs 310 and 320. The pair of brake discs 310 and 320 further amplify the thrust into a positive pressure applied to the rotating disk 220 through the cooperation of the first inclined wedge surfaces 312 and 322 on the pair of brake discs 310 and 320 and the second inclined wedge surfaces 231 and 232 on the guide plate 230. Different positive pressures are obtained by controlling the input torque of the cam spring 340.
[0084] When the screen 100 Figure 8 Rotate left as shown or Fig. 9 After the cam 330 is rotated right to the right position, the cam spring 340 increases the rotation tendency of the cam 330, and the cam 330 applies a thrust to the pair of brake discs 310 and 320. The first inclined wedge surfaces 312 and 322 on the pair of brake discs 310 and 320 cooperate with the second inclined wedge surfaces 231 and 232 on the guide plate 230 to apply a pressure to the rotating disc 220, and make the pressure greater than the set value. At this time, the rotating disc 220 will be locked by the pair of brake discs 310 and 320 and cannot rotate. Fig. 9 or Fig.11 The adjusted status is shown.
[0085] Example 2
[0086] See also Figure 12 to Figure 14The screen rotation locking mechanism shown in the figure is different from that in Example 1 in that a linear motion mechanism is added and the rotation mechanism is installed on the linear motion mechanism, as follows:
[0087] The linear motion mechanism includes: a base 510, two rails 520, 530 and a limit head 540. Two parallel rail holes 233, 234 are opened in the guide plate 230. The rail holes 233, 234 are flat square holes. The two rails 520, 530 are both flat squares, so that the two rails 520, 530 will not rotate in the rail holes 233, 234.
[0088] One end of the two rails 520 and 530 adjacent to the base 510 is fixed in the base 510, and the base 510 is fixed on the center console, and of course, it can also be fixed at other positions in the vehicle.
[0089] The limit head 540 is fixed to one end of the two rails 520 and 530 away from the base 510, so that the limit head 540 cooperates with the base 510 to limit the guide plate 230 to the extreme position of the reciprocating linear motion on the rails 520 and 530.
[0090] In addition, the first inclined wedge surfaces 312 , 322 of the pair of brake discs 310 , 320 will be in frictional contact with the two rails 520 , 530 , so that the guide plate 230 will produce a damping effect during the reciprocating linear motion on the two rails 520 , 530 .
[0091] When the rotation tendency of the cam 330 increases, the pressure exerted by the first beveled wedge surfaces 312, 322 on the pair of brake discs 310, 320 on the two rails 520, 530 increases, so that the friction between the first beveled wedge surfaces 312, 322 of the pair of brake discs 310, 320 and the two rails 520, 530 increases. When the friction is greater than the torque of the guide plate 230 moving, the guide plate 230 will be locked, making the guide plate 230 unable to move.
[0092] When the rotation tendency of the cam 330 decreases, the pressure exerted by the first beveled wedge surfaces 312, 322 on the pair of brake discs 310, 320 on the two rails 520, 530 decreases, so that the friction between the first beveled wedge surfaces 312, 322 of the pair of brake discs 310, 320 and the two rails 520, 530 decreases. When the friction is less than the torque of the guide plate 230 moving, the guide plate 230 is unlocked, so that the guide plate 230 can move.
[0093] The rest of the structure of the screen rotation locking mechanism of this embodiment is the same as that of the first embodiment.
[0094] See also Fig.15When the screen 100 is in the initial state, the cam spring 340 increases the rotation tendency of the cam 330, and the cam 330 applies a thrust to the pair of brake discs 310, 320. The first inclined wedge surfaces 312, 322 on the pair of brake discs 310, 320 cooperate with the second inclined wedge surfaces 231, 232 on the guide plate 230 to apply a pressure to the rotating disk 220, and make the pressure greater than the set value. At this time, the rotating disk 220 will be locked by the pair of brake discs 310, 320 and cannot rotate.
[0095] When the screen 100 is rotated, the rotating disk 220 rotates with the screen 100. At this time, the cam spring 340 is compressed, the rotation trend of the cam 330 becomes smaller, and the thrust applied by the cam 330 to the pair of brake discs 310 and 320 will decrease. Through the cooperation of the first inclined wedge surfaces 312 and 322 on the pair of brake discs 310 and 320 and the second inclined wedge surfaces 231 and 232 on the guide plate 230, the pressure applied to the rotating disk 220 will also decrease. When the pressure is less than the set value, the rotating disk 220 can rotate again. However, since there is still a certain friction between the first brake surfaces 311 and 321 of the pair of brake discs 310 and 320 and the rotating disk 220, the rotating disk 220 can rotate under the action of damping.
[0096] When the screen 100 Fig.17 After being adjusted into place as shown, the cam spring 340 increases the rotation tendency of the cam 330, and the cam 330 applies a thrust to the pair of brake discs 310, 320. The first inclined wedge surfaces 312, 322 on the pair of brake discs 310, 320 cooperate with the second inclined wedge surfaces 231, 232 on the guide plate 230 to apply a pressure to the rotating disk 220, and make the pressure greater than the set value. At this time, the rotating disk 220 will be locked by the pair of brake discs 310, 320 and cannot rotate. Fig.17 The adjusted status is shown.
[0097] Example 3
[0098] See also Figures 18 to 21 The screen rotation locking mechanism shown in the figure is different from that of Example 1 in that the structure of the guide plate 230a is different from that of the guide plate 230 of Example 1, and it is directly installed on the center console or other positions in the vehicle.
[0099] The screen rotation locking mechanism of this embodiment also includes an upper base 510a, a rotating disk 220a and two shafts 610, 620. The structure of the upper base 510a is different from that of the cover 210 of Example 1, and the structure of the rotating disk 220a is different from that of the rotating disk 220 of Example 1.
[0100] The guide plate 230a and the upper base 510a of this embodiment can be in a triangular shape (of course, they can also be in other shapes), and one corner of the upper base 510a is fixed to one corner of the guide plate 230a. The rotating disk 220a is a plate-shaped structure, which is arranged between the upper base 510a and the guide plate 230a. A track groove 221a is provided on the rotating disk 220a, and the track groove 221a is composed of a segment of arc-shaped track groove 221aa and two segments of straight track grooves 221ab and 221ac. The two segments of straight track grooves 221ab and 221ac are respectively located at the two ends of the arc-shaped track groove 221aa and are located on the same straight line. .
[0101] The two shafts 610 and 620 pass through the track groove 221a, and the upper and lower ends of the two shafts 610 and 620 are respectively connected to the other two corners of the upper base 510a and the other two corners of the guide plate 230a, so that the three corners of the upper base 510a and the three corners of the guide plate 230a are interconnected to form a stable structure, and the rotating disk 220a can rotate between the upper base 510a and the guide plate 230a.
[0102] A pair of brake discs 310, 320, a cam 330, a cam spring 340 and a cam coil spring driving wheel 350 are all installed in the guide plate 230a, and the first brake surfaces 311, 321 of the pair of brake discs 310, 320 are in friction contact with the rotating disk 220a.
[0103] The locking, unlocking and damping principles of the pair of brake discs 310 and 320 on the rotating disc 220a are the same as those in Embodiment 1 and will not be described in detail herein.
[0104] The screen 100 is mounted on the rotating disk 220 a in a three-point fixing manner, and the three points are not on the same straight line, so as to form a stable support for the screen 100 .
[0105] See also Figure 22 to Figure 25 When the screen 100 is in the initial state, the cam spring 340 increases the rotation tendency of the cam 330, and the cam 330 applies a thrust to the pair of brake discs 310, 320. The first inclined wedge surfaces 312, 322 on the pair of brake discs 310, 320 cooperate with the second inclined wedge surfaces 231, 232 on the guide plate 230 to apply a pressure to the rotating disk 220a, and make the pressure greater than the set value. At this time, the rotating disk 220a will be locked by the pair of brake discs 310, 320 and cannot rotate.
[0106] When the screen 100 is rotated, the rotating disk 220 rotates with the screen 100. At this time, the rotation trend of the cam 330 becomes smaller, and the cam spring 340 is compressed. The thrust applied by the cam 330 to the pair of brake discs 310 and 320 will decrease. Through the cooperation of the first inclined wedge surfaces 312 and 322 on the pair of brake discs 310 and 320 and the second inclined wedge surfaces 231 and 232 on the guide plate 230, the pressure applied to the rotating disk 220a will also decrease. When the pressure is less than the set value, the rotating disk 220a can rotate again. However, since there is still a certain friction between the first brake surfaces 311 and 321 of the pair of brake discs 310 and 320 and the rotating disk 220a, the rotating disk 220 can rotate under the action of damping, and the screen 100 can rotate according to the Fig.24 Rotate in the direction indicated by arrow A.
[0107] When one of the shafts 610 moves into the straight track groove 221ab, the screen 100 can move in accordance with Fig.25 Move in the direction indicated by arrow B.
[0108] When the screen 100 Fig.24 After being adjusted as shown, the cam spring 340 increases the rotation tendency of the cam 330, and the cam 330 applies a thrust to the pair of brake discs 310, 320. The first inclined wedge surfaces 312, 322 on the pair of brake discs 310, 320 cooperate with the second inclined wedge surfaces 231, 232 on the guide plate 230 to apply a pressure to the rotating disc 220a, and make the pressure greater than the set value. At this time, the rotating disc 220a will be locked by the pair of brake discs 310, 320 and cannot rotate. Fig.25 The adjusted status is shown.
[0109] Example 4
[0110] The screen rotation locking mechanism of this embodiment is different from that of embodiment 2 in that: Fig.26 , see the figure, each track 520, 530 is provided with a rack 521, 531, and in addition, corresponding to the position of the rack 521, 531, a part of the track hole 233, 234 is open, that is, the second inclined wedge surface 231, 232 is exposed. Two gears 550, 560 (the aforementioned first gear) are arranged on the inner shaft of the guide plate 230, and the two gears 550, 560 are meshed with the racks 521, 531 respectively, so that when the two gears 550, 560 rotate, they can drive the guide plate 230 to reciprocate linearly on the two tracks 520, 530 by meshing with the racks 521, 531.
[0111] In addition, the screen rotation locking mechanism shown in the figure is different from the embodiment 1 in that: a segment of arc-shaped rack 221c (the aforementioned first arc-shaped rack) is arranged in the middle position of the outer circle of the rotating disk 220c, and two gears 550 and 560 are meshed with the arc-shaped rack 221c, so that when the screen 100 rotates, the rotating disk 220c also rotates, and the guide plate 230 is driven to move by the two gears 550 and 560, so that the screen 100 can be rotated while also moving forward and backward to avoid the center console. In addition, this embodiment can be changed to an electric drive, a segment of arc-shaped rack 223c (the aforementioned second arc-shaped rack) is arranged in the middle position of the inner circle of the rotating disk 220c and a gear 223c is added, the gear 223c shaft is arranged on the guide plate 230 and meshes with the arc-shaped rack 223c, so that the gear 223c is driven by a motor (not shown in the figure), and when the gear 223c rotates, it drives the rotating disk 220c to rotate.
[0112] Example 5
[0113] The screen rotation locking mechanism of this embodiment is different from that of the second embodiment in that it is also driven electrically. The rotating disk 220b can be driven to rotate by a driving mechanism, see Fig. 27 , add a screw rod 710 parallel to the tracks 520 and 530, and set an arc-shaped rack 221b on the inner ring of the rotating disk 220b. A gear 720 is installed on the screw rod 710, and the gear 720 is meshed with the arc-shaped rack 221b. In this way, the rotation of the screw rod 710 drives the rotating disk 220b to rotate through the bevel gear 720, and the rotation of the rotating disk 220b drives the screen 100 to rotate.
[0114] In addition, an arc-shaped rack 221c is provided on the outer ring of the rotating disk 220b, and two gears 550 and 560 are meshed with the arc-shaped rack 221c. When the rotating disk 220b rotates, the meshing of the arc-shaped rack 221c and the two gears 550 and 560 drives the two gears 550 and 560 to rotate. The two gears 550 and 560 mesh with the racks 521 and 531 on the two tracks 520 and 530, thereby driving the guide plate 230 to move in a straight line, so that the screen 100 can rotate while moving forward and backward to avoid the center console.
Claims
1. Screen rotation locking mechanism, including: Screen; A rotating mechanism for rotating the screen left and right, wherein the screen is mounted on the rotating mechanism, characterized in that it also includes: A clamping mechanism clamps the rotating mechanism. When the screen is stationary, the clamping mechanism clamps and locks the rotating mechanism; when the screen rotates, the clamping mechanism unlocks the rotating mechanism and produces a damping effect.
2. The screen rotation locking mechanism according to claim 1, characterized in that: Also includes: A motion mechanism that enables the screen to perform reciprocating motion; the rotating mechanism and the clamping mechanism are installed on the motion mechanism, and when the clamping mechanism is in a locked state, the clamping mechanism clamps and locks the motion mechanism; when the clamping mechanism is in an unlocked state, the clamping mechanism unlocks the motion mechanism and produces a damping effect.
3. The screen rotation locking mechanism according to claim 1, characterized in that: The motion mechanism comprises: A base fixed on the center console; at least one track mounted on the base; A guide plate is installed on the track and can reciprocate along the track, the rotating mechanism and the clamping mechanism are installed on the guide plate, and the clamping mechanism acts on the track to clamp and lock the guide plate and generate damping.
4. The screen rotation locking mechanism according to claim 3, characterized in that: A limit head is fixed to one end of the track away from the base, and the limit head cooperates with the base to limit the guide plate to an extreme position of reciprocating motion on the track.
5. The screen rotation locking mechanism according to claim 4, characterized in that: A rack is arranged on the track, and at least one first gear is installed in the guide plate. The first gear is meshed with the rack, and the guide plate is driven to reciprocate along the track through the rotation of the first gear.
6. The screen rotation locking mechanism according to claim 5, characterized in that: A first arc-shaped rack is arranged on the outer circle of the rotating disk, and the gear is meshed with the first arc-shaped rack.
7. The screen rotation locking mechanism according to claim 1, characterized in that: The rotating mechanism comprises: a cover mounted on the guide plate, wherein the screen is hinged at one end of the cover adjacent to the screen; A rotating disk is arranged between the cover and the guide plate, and the screen is fixed on the rotating disk. When the screen rotates, the rotating disk is driven to rotate. The clamping mechanism acts on the rotating disk to clamp, lock and generate damping for the rotating disk.
8. The screen rotation locking mechanism according to claim 1, characterized in that: The screen is hinged on one end of the cover adjacent to the screen through a rotating shaft bolt and a pair of bearings.
9. The screen rotation locking mechanism according to claim 1, characterized in that: The rotating mechanism comprises: a lower base, the lower base being mounted on the guide plate, an upper base mounted on the lower base; a rotating disk disposed between the upper base and the lower base, the screen being mounted on the rotating disk; when the screen rotates, the rotating disk is driven to rotate; a track groove is disposed on the rotating disk; the clamping mechanism is mounted in the lower base to clamp, lock and damp the rotating disk; At least one shaft passes through the track groove and has upper and lower ends respectively fixed on the upper base and the lower base.
10. The screen rotation locking mechanism according to claim 1, characterized in that: The rotating mechanism comprises: an upper base mounted on the guide plate; a rotating disk disposed between the upper base and the lower base, the screen being mounted on the rotating disk; when the screen rotates, the rotating disk is driven to rotate; a track groove is disposed on the rotating disk; the clamping mechanism is mounted in the lower base to clamp, lock and damp the rotating disk; At least one shaft passes through the track groove and the upper and lower ends are respectively fixed on the upper base and the guide plate.
11. The screen rotation locking mechanism according to claim 10, characterized in that: The track groove is composed of a semicircular track groove and two straight track grooves, and the two straight track grooves are respectively located at two ends of the semicircular track groove and are located on the same straight line.
12. The screen rotation locking mechanism according to any one of claims 1 to 11, characterized in that: The clamping mechanism comprises: A pair of brake discs, each brake disc having a first brake surface in frictional contact with the rotating disc, the first brake surface being in frictional contact with the rotating disc at all times; each brake disc also having a first inclined wedge surface opposite to the first brake surface, a second inclined wedge surface cooperating with the first inclined wedge surface being arranged in the guide plate, each brake disc being able to generate a movement tendency along the second inclined wedge surface to adjust the friction force between the first brake surface and the rotating disc; at the same time, the first inclined wedge surface is also in frictional contact with the track to clamp and lock the track and generate damping; a cam for driving the pair of brake discs to move, the cam being in contact with opposite ends of the pair of brake discs; A cam coil spring drives the cam to rotate; one end of the cam coil spring is connected to the cam, and the other end of the cam coil spring acts on the guide plate, and the cam coil spring generates a movement tendency for the cam.
13. The screen rotation locking mechanism according to claim 12, characterized in that: Also includes: A cam coil spring driving wheel is installed in the guide plate, the cam coil spring is wound around the cam coil spring driving wheel and the other end of the cam coil spring is connected to the cam coil spring driving wheel.
14. The screen rotation locking mechanism according to claim 13, characterized in that: Also includes: A second arc-shaped rack is arranged in the middle of the inner circle of the rotating disk; A second gear having an axis disposed in the guide plate, the second gear meshing with the second arc-shaped rack; A driving mechanism drives the second gear to rotate, and the second gear drives the rotating disk to rotate by meshing with the second arc-shaped rack, and then drives the screen to rotate through the rotating disk.